1. Colorado Space Grant Consortium Gateway To Space ASEN 1400 / ASTR 2500 Class #13 Gateway To Space ASEN 1400 / ASTR 2500 Class #13 T-53

2. -Announcements -Next Time -One Minute Report Questions -Arduino Part 3: Sensors and SD Cards Today:

3. -Everyone bring HW #4 and #5 hardware? -USB cables? -Arduino Unos? -Laptop? Announcements:

4. -Review Syllabus changes… -Considering special session for finishing Arduino -See how today goes Announcements:

5. -Where is the Arduino Cheat Sheet? -Do we just program to keep the sensors on the entire flight? -Do you know any good websites with Arduino tutorials? -Can we go over what the code means? int, map, etc? -How many commands are there? -What programming languages does the Arduino understand? -Would we be able to hook a speaker to the Uno so it plays a beep every second? -What sort of boards do other satellites have? -How is a potentiometer be relevant to our mission? One Minute Reports:

6. -How do we store data to look at later? -Why are we using 2 Arduinos for our BalloonSat? -Is there a limit to the amount code we can put on the Uno? -Examples of Arduino Code? -What things define our grades and how are they weighted? One Minute Reports:

7. Next Time… Rocket History Next Time… Rocket History Colorado Space Grant Consortium

8. 8 - Now let’s modify our sketch to add an analog input - Let’s use the potentiometer from HW #4 Arduino Overview:

9. 9 - Connect the Red wire to +5V, Black to GND, and White to A0 Arduino Overview:

10. 10 - Leave the LED connected to pin 9 but it won’t blink Arduino Overview:

11. 11 - Potentiometer is acting like an analog sensor - We can now hook up any analog sensor and see its value (at least through serial) - What other sensors can we hook up? - Let’s add some… - But first let’s add the Protoshield Arduino Overview:

12. 12 - Take out the Protoshield your team built in HW#4 Arduino Overview:

13. 13 - Carefully connect it with your unpowered Uno Arduino Overview:

14. 14 - Carefully connect it with your unpowered Uno Arduino Overview:

15. 15 - Carefully connect it with your unpowered Uno Arduino Overview:

16. 16 - Carefully connect it with your unpowered Uno Arduino Overview:

17. 17 - Reconnect Uno to laptop and verify all is working - Activate Serial Monitor Arduino Overview:

18. 18 - Disconnect LED Breadboard and connect wire from pin 9 to JC3 on ProtoShield - Activate Serial Monitor Arduino Overview:

19. 19 - Carefully move wire to JC3 to JC2… Arduino Overview:

20. 20 - Add the Temperature Sensor to the Breadboard Arduino Overview:

21. 21 - Connect Pin 1 to 5V Arduino Overview:

22. 22 - Connect Pin 3 to GND Arduino Overview:

23. 23 - Connect Pin 2 to A5 Arduino Overview:

24. 24 - Modify your sketch to add the following variable Arduino Overview:

25. 25 - Modify your sketch to add the following lines in loop Arduino Overview:

26. 26 - Compile and Upload - Activate Serial Monitor - Test by putting your finger on the sensor - Do you see a change? Arduino Overview:

27. 27 - Convert to Voltage and display on Serial Monitor Arduino Overview:

28. 28 - Should see this… Arduino Overview:

29. 29 - Use spec sheet to convert to degrees C - 10 mV/C - Look for offset Arduino Overview:

30. 30 - 0.5 V offset Arduino Overview:

31. 31 - Modify your sketch Arduino Overview:

32. 32 - Should see this… Arduino Overview:

33. 33 - Data make sense? - How would you calibrate this sensor? Arduino Overview:

34. 34 - Add the Humidity Sensor to the Breadboard Arduino Overview:

35. 35 - Connect 5 V from Temp Sensor Arduino Overview:

36. 36 - Connect GND from Temp Sensor Arduino Overview:

37. 37 - Connect Out to A4 Arduino Overview:

38. 38 - Modify Sketch Arduino Overview:

39. 39 - Should get… Arduino Overview:

40. 40 - Convert to voltage and understandable units from data sheet - Algebra Arduino Overview:

41. 41 - Modify Sketch Arduino Overview:

42. 42 - Should get… Arduino Overview:

43. 43 - Data make sense? - How would you calibrate this sensor? Arduino Overview:

44. 44 - Add the Accelerometer to the Breadboard Arduino Overview:

45. 45 - Connect 3.3V to Vcc from UNO Arduino Overview:

46. 46 - Connect GND to GND from Humidity Sensor Arduino Overview:

47. 47 - Connect ZOUT to A3 on UNO Arduino Overview:

48. 48 - Connect YOUT to A2 on UNO Arduino Overview:

49. 49 - Connect XOUT to A1 on UNO Arduino Overview:

50. 50 - Accelerometer has a few other settings we need address from the Data Sheet Arduino Overview:

51. 51 - Sleep…Connect 3.3V from Accel Vcc to SLP Arduino Overview:

52. 52 - Range…Connect 3.3V from Accel Vcc to GSEL Arduino Overview:

53. 53 - Modify Sketch as follows Arduino Overview:

54. 54 - Modify Sketch as follows Arduino Overview:

55. 55 - Should get… Arduino Overview:

56. 56 - Convert to voltage and understandable units from data sheet - Algebra Arduino Overview:

57. 57 - Convert to Voltage = accelX * (5.0/1024) - Subtract offset and convert to Gs Gs = (voltage – 1.65) / (0.206) Arduino Overview:

58. 58 Arduino Overview: - Modify Sketch as follows

59. 59 Arduino Overview: - Modify Sketch as follows

60. 60 Arduino Overview: - Should get…

61. 61 Arduino Overview: - Hold X flat, should see 0 G

62. 62 Arduino Overview: - Hold X arrow pointing up, should see 1.0 G

63. 63 Arduino Overview: - Hold X arrow pointing down, should see - 1.0 G

64. 64 Arduino Overview: - Repeat with Y and Z axes - May need to tape breadboard down - Do you need to Calibrate? - How would you do it?

65. 65 - Add the Pressure Sensor to the Breadboard - Notice orientation Arduino Overview:

66. 66 - Add the Pressure Sensor to the Breadboard - Notice orientation Arduino Overview:

67. 67 - Connect Pin 2 to 5.0 Volts from your Humidity Sensor Arduino Overview:

68. 68 - Connect Pin 4 to GND from your Humidity Sensor Arduino Overview:

69. 69 - Connect Pin 3 to A0 on your UNO Arduino Overview:

70. 70 - Modify your sketch… Arduino Overview:

71. 71 - Modify your sketch… Arduino Overview:

72. 72 - Compile and upload. Should see… Arduino Overview:

73. 73 - Use ¼ sprinkler tubing to suck on pressure sensor - Do not blow as limit of this sensor is 15 psi Arduino Overview:

74. 74 - Convert to voltage pV=A0*(5.0/1024) - Use spec sheet to solve for psi (Algebra) Pmax = 15 psi Pmin = 0 Vsupply = 5.0 V Output(V) = pV Arduino Overview:

75. 75 - Solve for Pressure(applied) = Pa Pa = psi= (pV – (.1 * 5.0)) / (.8*5.0) / (15-0) psi= (pV –.5) / (.4 / 15) Arduino Overview:

76. 76 - Modify your sketch… Arduino Overview:

77. 77 - Modify your sketch…Suggest commenting out your accel and other sensor Serial.print statements Arduino Overview:

78. 78 - Should see this… - Suck to zero? Arduino Overview: